A solution of an unknown acid was prepared by dissolving 4.168 g of the solid acid in enough DI water to make 500.0 mL of solution. It takes 23.47 mL of 0.1678 M NaOH solution to neutralize 10.00 mL of the unknown acid solution.   Assuming that the acid is monoprotic. What is the concentration of the acid? What isthe molar mass of the acid? (Hint: first calculate the total moles in the 500.0 mL flask. The full 500.0 mL of solution was NOT titrated.)

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